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DIRECTIVE
DECLARATION OF CONFORMITY
ESAB Welding Equipment AB, S--695 81 Laxå, Sweden, gives its unreserved guarantee that welding
power source LAW 420/520 -- 420/520W from serial number 912 complies with standard IEC/EN
60974--1, in accordance with the requirements of directive (73/23/EEC) and addendum (93/68/EEC)
and with standard EN 50199 in accordance with the requirements of directive (89/336/EEC) and add-
endum (93/68/EEC).
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Paul Karlsson
Managing Director
Esab Welding Equipment AB
695 81 LAXÅ
SWEDEN
Tel: + 46 584 81000
Fax: + 46 584 12336
Laxå 1999--04--22
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SAFETY
WARNING
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.
ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAU-
TIONS WHEN WELDING. ASK FOR YOUR EMPLOYER’S SAFETY PRACTICES WHICH SHOULD BE
BASED ON MANUFACTURERS’ HAZARD DATA.
ELECTRIC SHOCK -- Can kill
S
Install and earth the welding unit in accordance with applicable standards.
S
Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
S
Insulate yourself from earth and the workpiece.
S
Ensure your working stance is safe.
FUMES AND GASES -- Can be dangerous to health
S
Keep your head out of the fumes.
S
Use ventilation, extraction at the arc, or both, to take fumes and gases away from your breathing zone
and the general area.
ARC RAYS -- Can injure eyes and burn skin.
S
Protect your eyes and body. Use the correct welding screen and filter lens and wear protective
clothing.
S
Protect bystanders with suitable screens or curtains.
FIRE HAZARD
S
Sparks (spatter) can cause fire. Make sure therefore that there are no inflammable materials nearby.
NOISE -- Excessive noise can damage hearing
S
Protect your ears. Use earmuffs or other hearing protection.
S
Warn bystanders of the risk.
MALFUNCTION -- Call for expert assistance in the event of malfunction.
PROTECT YOURSELF AND OTHERS!
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INTRODUCTION
The LAW 420, 420W, 520 and 520W are 6--pulse thyristor rectifiers designed for
semi--automatic welding.
Both rectifiers are fan--cooled and equipped with thermal overload protection.
GB
